Abstract: A ZIF socket (1) includes a base (11), a plurality of terminals (14) received in the base and a cover (12) slideably mounted on the base. Each terminal has a resilient arm (141) having an arced section (143) and an engaging section 142 for engaging with corresponding pins (131) of a chip module (13). The cover has a plurality of holes (120) for the pins of the chip module to extend therethrough. Each hole has a shape and area similar to those of a space surrounded by the arced section of the resilient arm of a corresponding terminal.

Abstract: A ZIF socket (1) on which a CPU (2) is mounted. The CPU (2) has a plurality of pins (21) extending through a cover (11) into a base (12) of the socket for electrically engaging with contacts (110) received in the base. The cover defines two slots (1112) in two opposite sides of a top face thereof. The slots are located below two side edges of the CPU, whereby there is more space for a user's fingers to grip the CPU to pull it away from the socket in order to replace CPU with another one.

Abstract: A mobile socket (1) comprises a base (10), a cover (20), a plurality of contacts (30) mounted in the base, a rotatable cam actuator (40) for actuating the cover to slide on the base, a protecting mechanism (50) and a washer (60). The protecting mechanism comprises a cover plate (51) in the cover and a bottom plate (52) in the base. The cover plate defines an elongated slot (512). A pair of opposite cam stoppers (515) extends upwardly from one side of the slot. The cam actuator has a protrusion (45) abutting against one of the cam stoppers during rotation.

Abstract: A contact (1) for a CPU socket connector includes a base (10) secured in the connector and a pair of arm sections (20) extending from opposite lateral sides of the base. Each arm section comprises an upper arm (21) extending from a body section (12) of the base, a forearm (25) extending obliquely and upwardly from a free end of the upper arm, a contact region (27) at a free end of the forearm, and a palm (29) extending obliquely from the contact region toward the body section. The pair of forearms defines a first space (251) therebetween, and the pair of palms diverge away from each other and define a second space (291) therebetween. The second space communicates with the first space at a narrow channel (271) defined between the contact regions. A pin (3) of a CPU is adapted to engage with the contact regions and establish electrical connection therebetween.

Abstract: A contact (10) for a ZIF PGA socket (20) includes a horizontal single-beam contact portion (12) and an elongated mounting portion (11) depending from the contact portion. The mounting portion includes a fixing portion (16) for fixing to the socket, a leg (19) depending from the fixing portion for extending through the socket and electrically communicating with a circuit board, and a neck (14) integrally connecting the contact portion and the fixing portion. The neck is substantially narrower than the fixing portion and the contact portion, thus allowing the contact portion to twist about a central vertical axis of the contact and to be displaced relative to the fixing portion. The contact portion can thereby rotatably contact and resiliently press against a corresponding pin (30) of a mating PGA device.

Abstract: An LGP connector comprises an insulative housing and a plurality of contacts. The housing defines a plurality of passageway sections for receiving the contacts therein. Each contact includes a soldering base for soldering the contact to a printed circuit board and an upper contact beam for electrically connecting the contact with an LGP chip, thereby electrically connecting the chip with the printed circuit board. Each contact comprises a pair of anti-rotation tabs extending from an end of the soldering base, and each passageway section transversely defines an anti-rotation cavity in a bottom face thereof and at a first side wall thereof for retaining the anti-rotation tabs of the contact.

Abstract: A scissors-like handle tool manipulates a ZIF socket having a cover slidably engaged with a bottom, between a loosened status and a tightened status. The handle tool comprises a first lever arm pivotably connected to a second lever arm. The handle tool is operated by encountering two lower ends of the first and second lever arms with two movable sides of the socket via a pivot operation of the handle tool thereby moving the cover of the ZIF socket along the bottom.

Abstract: A contact (1) for a socket connector includes a base (10) and a pair of arm sections (20). The base has a body section (12), a head section (11) for being secured in the socket connector, and a soldering section (14) for being soldered onto a printed circuit board. Each arm section includes an upper arm (21) extending obliquely downwardly from a lateral side of the body section, a forearm (25) extending upwardly from a free end of the upper arm, a clamp (27) at an upper end of the forearm, and a palm 28 (or 29) extending obliquely from the clamp toward the body section. A free space (301) is defined between the palms. A clamping space (271) is defined between the clamps. A pin of a CPU is adapted to engage between the clamps and establish electrical connection therebetween.

Abstract: A substantially rectangular socket connector for connecting a CPU to a mother board, comprises a base and cover mounted on the base and movable relative thereto between open and closed positions along a diagonal direction of the connector. The cover defines a number slots extending in a direction parallel to the diagonal direction. The base forms a number of teeth slidably received in the slots. A number of contacts are fixedly received in contact passages defined in the base for engaging with/disengaging from pins of the CPU inserted into the connector in response to a movement of the connector between the closed and open positions. The cover further forms at least a ridge in a corresponding slot to divide the corresponding slot into two recessed regions. The tooth extending into the corresponding slot is received in either of the two recessed regions when the connector is at either of the open and closed positions whereby the connector can be more securely located at these two positions.

Abstract: A socket connector includes a rectangular base plate adapted to be positioned on a circuit board and retaining an electronic device, such as an integrated circuit, thereon for establishing electrical connection between the electronic device and the circuit board by means of contacts retained therein. Bumps are formed on the base plate for engaging with notches defined in the electronic device to precisely positioning the electronic device with respect to the base plate. A retention module includes a frame having four wall segments defining an interior space therebetween for receiving the base plate. A pair of sideways projections is formed on one wall segment with aligned holes defined therein for receiving pivots of a resilient clip thereby making the clip movable between an open position where the base plate is exposed for receiving the electronic device and a closed position where the clip resiliently engages with the electronic device thereby securing the electronic device to the base plate.

Abstract: A contact strip includes a number of conductive contacts (4), a contact carrier (5) and a corresponding number of links (6) connecting corresponding contacts to the contact carrier. Each contact includes a contact portion (42) and a soldering portion (43) opposite the contact portion for attaching a solder ball for soldering to a printed circuit board. The contact portion is plated with gold using a molten gold plating liquid for enhancing electrical/mechanical characteristics of the contact portion. Each link defines a longitudinal slot (61) for obstructing a wicking path from the contact to the contact carrier. Furthermore, an elongate opening (52) is defined in the contact carrier above and perpendicular to a corresponding slot to further prevent the plating liquid from wicking up to the contact carrier, thereby preventing loss of the expensive plating liquid and reducing the cost of the contact.

Abstract: An LGA socket comprises an insulative housing defining a number of passageways therethrough and a corresponding number of terminals retained therein. Each terminal forms upper and lower spring arms partially extending beyond the corresponding passageway, a curved linking portion for connecting the upper and lower arms, and a securing arm extending from the lower arm towards the upper arm and secured to the insulative housing. The upper arm can be deformed to contact the securing arm thereby providing a short electrical path therethrough and reducing the overall height of the LGA socket.

Abstract: A BGA socket comprises an insulative cover and a base. The base defines a plurality of passageways therein. A plurality of triangular plates projects from edges of the base. A barb is formed on an edge of each triangular plate. The cover defines a plurality of apertures therein for receiving a plurality of terminals. A plurality of elongate standoffs is formed on a bottom surface of the cover with an opening defined in a lateral face of each standoff. The barbs of the base are slidably received in the slots of the cover thereby connecting the base and the cover together. The standoffs of the cover extend beyond a bottom surface of the base.

Abstract: An electrical connector (4) electrically connects a CPU (6) to a motherboard (3) and comprises a housing (40) and a plurality of contacts (5). The housing has a first face (41) for engaging the CPU, a second face (42) for attaching to the motherboard and a plurality of contact passageways (43) defined between the two faces for receiving the contacts. Each contact comprises a contact section (51) which extends beyond the first face and engages a corresponding contact of the CPU, a tail (52) received in the contact passageway, and a receiving section (53) opposite the contact section which abuts a mating face (44) of the passageway proximate to the second surface to form an arcuate receiving surface for engaging a solder ball (2). After the solder ball is heated, the tail is electrically engaged to a contact on the motherboard. Due to the configuration of the arcuate receiving space, the solder ball remains in its original position and the contact is prevented from inclining.

Abstract: A connector comprises an insulative housing in which a plurality of passageways are defined. A plurality of contacts are received in the passageways. Each contact comprises an engagement plate loosely retained in the passageway, a positioning section connected to the engagement plate via a first flexible neck and mounted thereon a solder ball, a contacting section located above the positioning section and connected to the positioning section via a second flexible neck. When the solder ball is soldered on a printed circuit board and the housing and the contact is urged by an external electrical device, the housing is moved downward with respect to the engagement plate of the contact and the contacting section is pressed downward by the external electrical device, with the second flexible neck being deformed for providing a normal force facilitating the contacting section to abut against the external electrical device.

Abstract: A zero insertion force (ZIF) socket for electrically connecting an electronic package and a mother board, comprises an insulative cover, a driving device, an insulative base defining a number of engaging slots therein and at least two types of engaging terminals received in the corresponding engaging slots. The engaging terminals or rows of the engaging slots are each offset relative to each other. Thus, electrical contacts are established between the engaging terminals and conductive terminals of the electronic package at different times thereby effectively lowering the operating resistance of the ZIF socket.

Abstract: A contact comprises a central torsion beam, two side plates integrally connected to two ends of the central torsion beam and each side plate is perpendicular to the torsion beam. Two curved spring arms extend oppositely from a center portion of the torsion beam so that when the side plates are fixed in position and the curved spring arms are exerted opposite forces by two contact pads sandwiching the contact, the torsion beam will be twisted for a predetermined angle to transmit reactive forces to the curved spring arms to abut against the contact pads.

Abstract: A contact comprises a plate, a positioning section connected to the plate via a first flexible neck and adapted to be mounted by an external solder ball, a contacting section located above and connected to the positioning section via a second flexible neck. The first flexible neck is deformable to absorb a tension originated from the plate. The second flexible neck is deformable to force the contacting section to abut against an external electrical device when the external electrical device urges the contacting section to electrically connect to the solder ball via the contact.

Abstract: An electrical connector comprises a base having a number of contacts received therein, a cover movably mounted on the base, a pair of first plates and a pair of second plates. The first and second plates are respectively positioned at opposite diagonal corners of the cover and the base. Each first plate faces an associated second plate. In operation, a tool positioned between the faced first and second plates is used to push the second plate from the first plate thereby driving the cover along the base in the diagonal direction.

Abstract: A contact element of an electrical connector includes an anchoring section having barbs for securing the contact element in a bore defined in a connector and a pin engaging section connected to the anchoring section by a reduced connection section. An elongate projection is formed on the connection section and substantially extends therealong for blocking a wicking path between the anchoring section and the pin engaging section thereby suppressing wicking of solder and/or gold coating through the connection section. The projection may be simply formed by pressing the connection section. The projection may be replaced by an elongate opening.